2013 Sierra HD, is a gear change worth it?
Hi everyone, I'm new to this forum and have a question about my 2013 Sierra 2500 HD with a 6.0L and 3.73 gear ratio. It has a tow rating of 9400 lbs and in the manual it says if I had 4.10 it goes...
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I have the 6.0 with 6 speed and 3.73 gears. I pull more weight then u without any concerns. I lock out 6th and run in 5th in Florida. Out of state I run 4th in the hills without complaints. Engine revving to 3500rpm is far... far.. from killing it. I have owned 6.0s for several years and love how this engine series performs.
